Is this for the required insurance for an "O-A" visa or do you just want to have it?
If the required one it limits who you can use.
But either way Pacific Cross is a pretty good choice. But they do add to your premium up to 40% more for being overweight.
Plus if you have existing health issues they will exclude that from coverage. Say for instance you are taking high blood pressure and/or cholesteral medications they are going to exclude you from coverage for heart attacks, strokes and such.